In battle, purge heroine 3 levels, and all 3 members have used their super wazas.

Gold - Purge Festival

Collect all other Trophies

Platinum - Ar tonelico thank you once again and next time

Get to LV99 for all party members.

Silver - Breeder

View Cocona's Ending.

Silver - Cocona End

View Finnel's True Ending

Silver - Finnel True End

Press Select during Cosmosphere dialouge 100 times.

Silver - Oyaki Master

View Saki's True Ending.

Silver - Saki True End

View Tilia's True Ending.

Silver - Tilia True End

Purge heroine 3 levels at once. (On red beat, with animation)

Silver - What's wrong with being a pervert!?

Contributed By: Silverwolf_X.

Secrets

Debug Menu (Japanese Version Only)

Once you are able to access the Cosmosphere, dive into it.
Inside the cosmosphere, Hold L2 and press the triangle button to access the debug menu.
In this menu you are able to open flag events, change character levels and parameters,
even add money and create clear game files.